Cover lock and film-magazine closure for cameras



Feb. 24, 1925.

V. A. GIANETTO' COVER LQCK AND FILM MAGAZINE CLOSURE FOR CAMERAS 2 Sheefs-Sheet 1 Filed Jan. 22, 1924 vvi lmeoo Feb. 24, 1925. 1,527,476

7 v. A. GIANETTO COVER LOCK AND FILM MAGAZINE CLOSURE FOR CAMERAS Filed 1924 2 Sheets-Sheet 2 1, through the camera, tak sub '3 Application filed January 22, 1924. Serial No. ceases.

A be a full, clear, and exact description ofthe Tic invention, such as will enable others skilled in {the art to which it appertains to make and use the same.

'- This invention for improvements in cover xlocks and film magazine closures for camcameras in which a strip of undeveloped film is passed from one magazine to another disposedwithingthe box or casing of the I camera. r

The invention has been designed in order to provide a'ineans whereby 'astrip of Y developed film contained in the looa or casing of acamera will not be exceed and damaged in case the cover of to camera as loox is accidentally opened, According to i the principles of the invention, the camera so is provided with a cover locking means which 7 automatically closes one of the *Iziut megazines when it is moved to unlocked position 3o; to permit the cover, to he p 7 This same means; automatically 0 ens the we man I 1 zine when operated to ock the cover of the;

1 camera shut. I A

The vnoveltym. the invention rcsides n certain new combinations and arrangements sn er parts and various features of construction, all of which are hereinafter fully described and claimed, reference he made to' the accompanying drawings, in wch a m practical embodiment of the invention is illustrated.

s in the drawings i Fig. l is an elevation of a portionoif the box and cover of a camera, which; is equipped I with mechanism constructed in accordance" with the invention;, thisv-iew illustrating the I [cover in open position; i I I Fig. 2 is an elevation of a portion of the camera, showin the cover in closed posio ion, but before It is locked by the improved 'I locking means;

' #Fig. 3 is a view similar to Fig. 2f, shog the locking means in locked position; i *Fig, i is a transverse? sectional view I no eras relates particularly to moving picture cover 3 shut.

- VICTOR GET'IO, 0F NEVLYO, N. Y

co noon nn rinn-msenzmn ctosnnn non is sings in whichv similar reference characters are used to designate corresponding parts throughout the several views, it will he explained that the numeral 1 desiates the 7o loox or casing of a moving picture camera; Hinged along one edge as at 2 to one side eithe hex l, is acover 3 for the camera hon. This cover 3 is constructed so that when it is closed arid locked, no light will enter the camera except through the lens thereof when the shutter is open. v 1

Either the "box 1 or thc cover 3 is provided with ameans. for locking'the cover shut, lln

the present instance this means is shown as so losing in the form of a locking bar l pivoted "to swingsubs'tantially fiat against the inside of the cover 3. The pivot 5 by which the bar 4 is connected to the cover 3 extends entirely through the cover and carries an op crating knob 6 similar to an ordinary wing nut at its outer end. By turning the op erating knob 6, the car amay he swung upon its ivot from ocked to locked position an vice vereat Secured to the inner W sideiof the cover 3 is a strap or keeper 7; which forms a guide for the swinging end, of the locking har- 4: to keep the letter that against the inside of the cover and limit its swing movement in" both directions. $5

Une side of the box of the camera is gorecahle oy thefree end of the has d when the latter is in clo or, locked Rotatably mounted uponthe hack 9 oi the camera box and *lii'l" transversely through the box toward the over 3 when shut, 1s aspindle 10 upon which the 1% ma azine, now to he described is mounted. This spindle 10 is tued inittently position to iiold the 353 n belt 11 which passes over a pulley 12 fitted on the spindle and some other pulley associated with the shutter actuating mechanism of the camera.

The film magazinewhich is mounted upon the spindle 10 consists of a pair of relatively turnable members 13 and 14. The inner member 13 is preferably cylindrical or tubular in shape, has its rear end closed, its front end open, is formed on one side with a slot or opening 15, and carries a pair of.

of the section 13 and carries a closure 18 for;

the slot or opening 15. The section or member 14 is-turnably mounted upon and with respect to the section 13 so that the closure 18 may be moved to and from a position to close the slot or opening 15.

In order to limit the turning movement of the section 14 with respectto the section 13, the latter is provided on opposite sides with pins 19 which fit in bayonet slots 20. formed in opposite sides of the annular flange 21 of the section 14. These elements not only limit the turning movement of the section 14 with respect to the section 13, but also serve .to lock the section 14 onto the section 13.

Disposed within the film magazine and having a detachable driving connection with the spindle 10, is a spool 22, upon which the film 23 is wound. This spool is preferably tubular and surrounds the spindle 10 and has a resilient tongue 24 designed to grip one end of thefilm. Extending transversely through the spool 22 is a pin 25. This is ada ted to fit into a notch 26 arranged in t e spindle 10, and form with such notch, the means for obtaining the detachable driving connection between the spool and the spindle.

The locking bar 4 and the section 14 of the film magazine are provided with separable clutch members or inter-engaging elements designed andarranged so that the movement of the locking bar Will turn the section 14. These elements include or comprise a pair of spaced parallel extending lugs 27 carried by the section or member 14 adjacent the axis thereof and constituting the driven clutch member, and one or 'more projections 28 project ng from the locking bar 4 adjacent the pivot thereof and constituting the driving clutch member. The projections 2 8v fit between the lugs 27, when the cover 3 is closed, so that when the operating knob 6 is turned so as to move the lock ing bar 4 so that its free end will swing back of the shoulder formed by the bar 8,

the section 14 of the film magazine will be' turned so as to move the closure 18 "from behind or under the slot or opening 15 in the section 13. However, when the operating knob 6 is swung so as to move the locking bar 4 to unlocked position to permit the cover 3 to be opened, the projections 28 engaging the lugs 27-will turn the section or vmember 14 so as to cause the closure 18 to close the slot or opening 15 in the section 13. It will therefore be seen that as the cover 3 is unlocked to permit it to be opened, the-film magazine will be closed so that when the cover is opened, the portion of the film contained in the film magazine will not be exposed and damaged. Only the portion of the film extending from the filmmagazine to the other film magazine of the camera will be exposed and damaged.

From the foregoing description, taken in connection with the accompanying drawings, the construction, use, operation and advantages of the invention will be readily understood. It will be obvious that numerous changes may be made without departing from the spirit and principled the invention or sacrificing any of the advantages thereof, so it is to be understood that such changes may be made within the meaning and scope of the appended claims.

1. The combination with a camera box having a cover, and means to lock said cover-closed, of a film magazine mounted within said box and provided with an opening through which the film passes and with a turnably' mounted member carrying a closure for said opening, and separable co act-ing clutch members carried respectively by said member and said means and arranged to be brought into operative engagement when said cover is closed and to be separated when said cover is opened, said clutch members being adapted to open said closure when said cover is locked and to close said closure locked. i 1

2. The combination with a; camera box having a cover, and means carried by said when said cover is uncover and engageable with said box to lock said cover closed, of a film magazine mounted within said box and provided with an opening through which the film passes and with a turnably mounted member carrying a closure for said opening, and separable co-acting clutch members carried respectively bysaid member and said means and arranged to be brought into operative engagem'entwhen said cover is closed and to be separated when said cover is opened, said clutch members being adapted to open said closure when said cover is locked and to close said closure when said cover isunlocked.

'3.The 'combination with a camera box having a cover and a locking bar pivotedi to the inside of said cover and adapted to engage the inside of said box cover closed, of a turnable; operating member on the outside of said cover and directly connected to saidlocking bar tooperate the same, a driving clutch member carried saidlocking bar adjacent its pivot, a film magazine mounted entirely within said box and consisting of a relatively immovable member provided with an opening through whichythe film passes and of a turnably mounted member carrying a closure for said to lock said.

opening, and a driven clutch member carried by said turnably mounted member and positioned to be operatively engaged by "said 15 member when, said cover is closed, said clutch members co-operating to driving clutch turn said turnably mounted member and open said'closure when said locking bar is locked and to close said closure when said 20 

